How does KAYAK find such low prices on flights from Ontario to Islip?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Islip. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Islip?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Ontario is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Ontario to Islip?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Ontario with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Islip?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

Cheap Flights from Ontario to Islip

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

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Cheapest round-trip

$359

Multiple Airlines

Fri 2/13Fri 2/20

YUL - ISP • 1 stop

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Flight Deals

Cheap Flights from Ontario to Islip

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

Recent round-trip flight deals from Ontario to Islip

Fri, Feb 13 - Fri, Feb 20

3:55 pm - 6:55 pm

YUL

ISP

27h 00m1 stop

8:33 am - 12:30 am

ISP

YUL

15h 57m1 stop

$359Multiple Airlines

Wed, Jan 21 - Sun, Jan 25

3:55 pm - 6:48 pm

YOW

ISP

26h 53m2 stops

7:53 pm - 5:15 pm

ISP

YOW

21h 22m1 stop

$369Multiple Airlines

Sun, Feb 15 - Sun, Feb 22

4:15 pm - 7:38 am

YOW

ISP

15h 23m2 stops

8:21 pm - 11:58 pm

ISP

YOW

27h 37m1 stop

$391Multiple Airlines

Fri, Feb 13 - Fri, Feb 20

8:00 am - 4:12 pm

YUL

ISP

32h 12m2 stops

3:34 pm - 12:30 am

ISP

YUL

8h 56m1 stop

$393Multiple Airlines

Wed, Jan 21 - Sat, Jan 24

9:30 am - 9:02 am

YOW

ISP

23h 32m1 stop

10:00 am - 11:58 pm

ISP

YOW

13h 58m1 stop

$399Multiple Airlines

Wed, Jan 21 - Sun, Jan 25

9:30 am - 9:02 am

YOW

ISP

23h 32m1 stop

10:00 am - 11:58 pm

ISP

YOW

13h 58m1 stop

$418Multiple Airlines

Mon, Jan 26 - Mon, Feb 2

3:55 pm - 11:59 am

YUL

ISP

20h 04m1 stop

7:20 pm - 12:38 am

ISP

YUL

29h 18m2 stops

$419Multiple Airlines

Thu, Jan 29 - Thu, Feb 5

9:30 am - 6:48 pm

YOW

ISP

9h 18m1 stop

11:55 am - 11:58 pm

ISP

YOW

12h 03m2 stops

$426Multiple Airlines

Sun, Feb 15 - Sun, Feb 22

4:20 pm - 7:38 am

YOW

ISP

15h 18m1 stop

8:33 am - 11:58 pm

ISP

YOW

15h 25m1 stop

$435Multiple Airlines

Mon, Jan 26 - Mon, Feb 2

6:45 am - 8:52 am

YUL

ISP

26h 07m2 stops

10:00 am - 12:38 am

ISP

YUL

38h 38m2 stops

$452Multiple Airlines

Useful Info

Cheapest flight	$359

Flight from Montreal to Islip

How does KAYAK find such low prices on flights from Ontario to Islip?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Islip.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Islip?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to Islip?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Islip?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Riverhead

Amagansett

Everything you need to know for your flight to Islip

Airports

Cabin class

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Direct Flights

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Origins

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Information on the airport you'll fly into in Islip

Islip (ISP)

$359 Find Cheap Flights from Ontario to Islip

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

Everything you should know

Cheap Flights from Ontario to Islip

Recent round-trip flight deals from Ontario to Islip

Good to know

FAQs for booking flights from Ontario to Islip

How does KAYAK find such low prices on flights from Ontario to Islip?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Islip.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Islip?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to Islip?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Islip?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Islip?

Everything you need to know for your flight to Islip

Information on the airport you'll fly into in Islip

Cabin class types available on flights to Ontario

Complete your trip to Islip with a hotel stay or car rental

Find direct flights for Islip

Flights to other popular destinations

Flights from domestic origins to Islip

Choose which airport to fly into in Islip

Find deals for your return flight